EP0988955A2 - Procédé pour introduire des additifs dans un courant de polymère fondu - Google Patents
Procédé pour introduire des additifs dans un courant de polymère fondu Download PDFInfo
- Publication number
- EP0988955A2 EP0988955A2 EP99114900A EP99114900A EP0988955A2 EP 0988955 A2 EP0988955 A2 EP 0988955A2 EP 99114900 A EP99114900 A EP 99114900A EP 99114900 A EP99114900 A EP 99114900A EP 0988955 A2 EP0988955 A2 EP 0988955A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- additives
- pump
- stream
- polymer melt
- partial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/32—Injector mixers wherein the additional components are added in a by-pass of the main flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/60—Pump mixers, i.e. mixing within a pump
- B01F25/62—Pump mixers, i.e. mixing within a pump of the gear type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
- B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
- B01F2025/91911—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component with feed openings in the center of the main flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2805—Mixing plastics, polymer material ingredients, monomers or oligomers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
Definitions
- the invention relates to a method for feeding Additives in a polymer melt stream, in which the A partial stream is taken from the polymer melt stream and this partial stream is also taken Additives is mixed and the partial flow mixed with the additives is supplied to the polymer melt stream again.
- DE-PS 4039857 describes a method and an apparatus for direct, continuous modification of polymer melts described.
- a main melt stream is optionally one modifying partial melt flow removed and into a Double-shaft extruder directed.
- the additives pass through a Feed pump in the twin-screw extruder.
- the modified Partial melt flow then becomes the main melt flow again fed.
- EP-B-0 532 988 describes a method for producing statistical Copolyester described. According to a preferred embodiment it is provided that a polyester (B) and 10 to 50 wt .-% of a Polyester (A) are fed to a mixing extruder, and the extrudate then in a static mixer with the rest 90 to 50 wt .-% of the polyester (A) is mixed.
- the invention has for its object a method for feeding of additives in a polymer melt stream in which a homogeneous premix of additives and some of the Polymer melt is reached. This should also be ensured if the additives have different rheological properties than that Have polymer melt.
- the object underlying the invention is achieved in that the unmixed partial flow completely or in maximum (n-1) further Partial flows each directly to a maximum of (n-1) pump gears, a planetary gear pump with n pump gears is supplied, the Additives at the same time unmixed at least one Pump gear of the planetary gear pump can be fed directly with the Additives mixed partial flow in the middle of the inlet of the planetary gear pump discharged from the planetary gear pump and into the polymer melt stream is introduced.
- the polymers used are, for example, polyesters, Polyamides, polyurethanes or polyolefins are used.
- additives come for example heat and UV stabilizers, lubricants, Mixed polymers or color concentrates are used.
- n is in the range of 2 to 10.
- the amount of the partial stream usually comprises 2 to 10% of Polymer melt flow.
- the partial flow mixed with the additives becomes dissipated at the inlet of the planetary gear pump, the planetary gear pump is thus against the usual flow direction from the exits operated towards the entrance. It has been surprisingly demonstrated that the additives are homogeneous at the outlet of the planetary gear pump the partial stream of the polymer melt stream are mixed well. It is it is possible to add various additives to the pump gears Feed planetary gear pump and in the divided partial flow of Introduce polymer melt stream homogeneously.
- the partial flow mixed with the additives is then returned to the polymer melt stream. This can then be in passed in a particularly advantageous manner through a static mixer become.
- the additives are mixed homogeneously with the partial flow distributed relatively quickly in the polymer melt stream homogeneously, which by the advantageous premixing of additives and the partial flow of Polymer melt flow is reached. Because of this premix it is also possible in an advantageous manner, the mixing section of the optionally arranged static mixer to choose relatively short.
- a preferred embodiment of the invention is that n 3 to 8. This allows the homogeneous mixing in realize in a particularly advantageous manner even if several Additives are used, the design effort being relative is low.
- the partial stream mixed with the additives after exiting the Planetary gear pump passed through a static mixer and then in introduced the polymer melt stream.
- This measure will homogeneous mixing in a relatively simple way reinforces what is advantageous to the homogeneous introduction into the polymer melt stream affects.
- the at least one unmixed at the same time Pump gear supplied additives in the planetary gear pump at Merge with the partial polymer streams centrally to the exit axis of the pump.
- the homogeneous mixing takes place on this Way relatively quickly over a short distance.
- the invention is based on the drawing (Fig.) And exemplified.
- Fig. Shows a simplified, schematic process flow diagram of the Process for feeding additives into a polymer melt stream.
- Fig. Is the method for feeding additives (4) in one Polymer melt flow (1) is shown schematically simplified.
- the Polymer melt stream (1) a partial stream (2) is taken and in three further partial streams (2a, 2b, 2c) divided. Every further partial stream (2a, 2b, 2c) one pump gear (3a, 3b, 3c) each Planetary gear pump (3) supplied.
- the planetary gear pump (3) has four Pump gears (3a, 3b, 3c, 3d).
- the additives (4) are one Pump gear (3d) fed. It happens in the planetary gear pump (3) a homogeneous premixing of the additives (4) with the divided one Partial stream (2).
- the partial stream (5) mixed with the additives is on Entry of the planetary gear pump (3) from the center of the planetary gear pump (3) dissipated and introduced into the polymer melt stream (1).
- this is mixed with the additives Partial stream (5) passed through a static mixer (6), which is also has an advantageous effect on the homogeneous premix.
- the Introducing the partial stream (5) mixed with the additives (4) into the Polymer melt flow (1) takes place via a nozzle (7). More static Mixers (8) enhance the homogeneous mixing of the with the additives mixed partial stream (5) in the polymer melt stream (1).
- the Partial stream (2) can only be divided into two further partial streams (2a, 2b).
- the divided partial stream (2) can advantageously be used simultaneously with two different additives (4) are mixed homogeneously (not shown).
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19841376A DE19841376A1 (de) | 1998-09-10 | 1998-09-10 | Verfahren zur Einspeisung von Additiven in einen Polymerschmelzestrom |
DE19841376 | 1998-09-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0988955A2 true EP0988955A2 (fr) | 2000-03-29 |
EP0988955A3 EP0988955A3 (fr) | 2001-11-14 |
EP0988955B1 EP0988955B1 (fr) | 2003-03-19 |
Family
ID=7880491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99114900A Expired - Lifetime EP0988955B1 (fr) | 1998-09-10 | 1999-07-30 | Procédé pour introduire des additifs dans un courant de polymère fondu |
Country Status (9)
Country | Link |
---|---|
US (1) | US6313200B1 (fr) |
EP (1) | EP0988955B1 (fr) |
CN (1) | CN1194845C (fr) |
AT (1) | ATE234719T1 (fr) |
DE (2) | DE19841376A1 (fr) |
ES (1) | ES2190629T3 (fr) |
PT (1) | PT988955E (fr) |
TR (1) | TR199902088A2 (fr) |
TW (1) | TW487622B (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10022889B4 (de) * | 2000-05-25 | 2007-12-20 | Lurgi Zimmer Gmbh | Verfahren zum Herstellen von synthetischen Fäden aus einer Polymermischung auf Polyesterbasis |
DE10049617B4 (de) * | 2000-10-05 | 2005-03-10 | Zimmer Ag | Vorrichtung zum Vormischen und Einspeisen von Additiven in einen Polymerstrom |
DE10126133B4 (de) * | 2001-05-29 | 2007-03-29 | Karl-Heinz Wiltzer | Verfahren und Vorrichtung zur Herstellung von hochviskosen oder hochstabilisierten Polykondensaten und entmonomerisiertem PA 6 |
DE10318108A1 (de) * | 2003-04-22 | 2004-11-11 | Bayer Ag | Verfahren zur Mischung von Polymerschmelzen mit Additiven |
DE10356821A1 (de) * | 2003-12-05 | 2005-07-07 | Bayer Materialscience Ag | Verfahren zur Mischung von Polymerschmelzen mit Additiven |
DE10357182A1 (de) * | 2003-12-06 | 2005-06-30 | Bayer Materialscience Ag | Verfahren zum schonenden Eintragen von Additiven, Katalysatoren oder Inhibitoren in Polymerschmelzen |
US7358322B2 (en) * | 2004-03-09 | 2008-04-15 | Eastman Chemical Company | High IV melt phase polyester polymer catalyzed with antimony containing compounds |
US20060047102A1 (en) | 2004-09-02 | 2006-03-02 | Stephen Weinhold | Spheroidal polyester polymer particles |
US8557950B2 (en) | 2005-06-16 | 2013-10-15 | Grupo Petrotemex, S.A. De C.V. | High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates |
CN101351492B (zh) * | 2005-09-16 | 2011-12-14 | 伊士曼化工公司 | 后加入方法实现缩聚物的组成改性 |
US8431202B2 (en) | 2005-09-16 | 2013-04-30 | Grupo Petrotemex, S.A. De C.V. | Aluminum/alkaline or alkali/titanium containing polyesters having improved reheat, color and clarity |
US7655746B2 (en) | 2005-09-16 | 2010-02-02 | Eastman Chemical Company | Phosphorus containing compounds for reducing acetaldehyde in polyesters polymers |
US9267007B2 (en) | 2005-09-16 | 2016-02-23 | Grupo Petrotemex, S.A. De C.V. | Method for addition of additives into a polymer melt |
US7932345B2 (en) | 2005-09-16 | 2011-04-26 | Grupo Petrotemex, S.A. De C.V. | Aluminum containing polyester polymers having low acetaldehyde generation rates |
US7838596B2 (en) | 2005-09-16 | 2010-11-23 | Eastman Chemical Company | Late addition to effect compositional modifications in condensation polymers |
US20070133346A1 (en) * | 2005-12-14 | 2007-06-14 | Tommy Jacobson | Mixing of chemicals into a thin stock pipe |
DE102006026254A1 (de) * | 2006-06-02 | 2007-12-06 | Schmidt & Heinzmann Gmbh & Co. Kg | Vorrichtung zum Erzeugen einer Komponentenmischung aus mindestens zwei Komponenten und Verfahren hierzu |
US7745368B2 (en) | 2006-07-28 | 2010-06-29 | Eastman Chemical Company | Non-precipitating alkali/alkaline earth metal and aluminum compositions made with organic hydroxyacids |
US7709595B2 (en) | 2006-07-28 | 2010-05-04 | Eastman Chemical Company | Non-precipitating alkali/alkaline earth metal and aluminum solutions made with polyhydroxyl ether solvents |
US7709593B2 (en) | 2006-07-28 | 2010-05-04 | Eastman Chemical Company | Multiple feeds of catalyst metals to a polyester production process |
US8563677B2 (en) | 2006-12-08 | 2013-10-22 | Grupo Petrotemex, S.A. De C.V. | Non-precipitating alkali/alkaline earth metal and aluminum solutions made with diols having at least two primary hydroxyl groups |
CN104130392B (zh) * | 2013-05-01 | 2018-10-26 | 英威达纺织(英国)有限公司 | 混合用于聚酰胺合成的侧流 |
TW201500389A (zh) * | 2013-05-01 | 2015-01-01 | Invista Tech Sarl | 用於將添加劑倂入至聚合物之方法及所產生之聚合物產物 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4039857A1 (de) | 1990-10-19 | 1992-04-23 | Inventa Ag | Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen |
EP0532988A1 (fr) | 1991-09-20 | 1993-03-24 | Zimmer Aktiengesellschaft | Procédé pour la préparation de copolyesters statistiques |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2619160A1 (de) * | 1976-04-30 | 1977-11-17 | Motan Gmbh | Einfaerbegeraet fuer fluessigfarben |
GB2066140B (en) * | 1979-10-12 | 1983-05-25 | Gen Eng Radcliffe | Method and apparatus for the incorporation of additives into plastics materials |
DE4134682C2 (de) * | 1991-10-21 | 1995-02-09 | Gezolan Ag | Verfahren zur kontinuierlichen Herstellung von hitzevernetzbaren und/oder thermoplastischen Elastomer-Mischungen |
-
1998
- 1998-09-10 DE DE19841376A patent/DE19841376A1/de not_active Withdrawn
-
1999
- 1999-07-14 US US09/353,094 patent/US6313200B1/en not_active Expired - Fee Related
- 1999-07-30 EP EP99114900A patent/EP0988955B1/fr not_active Expired - Lifetime
- 1999-07-30 AT AT99114900T patent/ATE234719T1/de not_active IP Right Cessation
- 1999-07-30 ES ES99114900T patent/ES2190629T3/es not_active Expired - Lifetime
- 1999-07-30 DE DE59904601T patent/DE59904601D1/de not_active Expired - Lifetime
- 1999-07-30 PT PT99114900T patent/PT988955E/pt unknown
- 1999-08-27 TR TR1999/02088A patent/TR199902088A2/xx unknown
- 1999-09-01 CN CNB991183681A patent/CN1194845C/zh not_active Expired - Fee Related
- 1999-09-03 TW TW088112338A patent/TW487622B/zh active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4039857A1 (de) | 1990-10-19 | 1992-04-23 | Inventa Ag | Verfahren und vorrichtung zur direkten, kontinuierlichen modifizierung von polymerschmelzen |
EP0532988A1 (fr) | 1991-09-20 | 1993-03-24 | Zimmer Aktiengesellschaft | Procédé pour la préparation de copolyesters statistiques |
Also Published As
Publication number | Publication date |
---|---|
US6313200B1 (en) | 2001-11-06 |
CN1247123A (zh) | 2000-03-15 |
CN1194845C (zh) | 2005-03-30 |
TR199902088A2 (xx) | 2000-04-21 |
ES2190629T3 (es) | 2003-08-01 |
DE19841376A1 (de) | 2000-03-16 |
ATE234719T1 (de) | 2003-04-15 |
TW487622B (en) | 2002-05-21 |
DE59904601D1 (de) | 2003-04-24 |
EP0988955A3 (fr) | 2001-11-14 |
EP0988955B1 (fr) | 2003-03-19 |
PT988955E (pt) | 2003-06-30 |
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